Foundation extension



F. RAPP.

' FOUNDATION EXTENSION. APPLICATION FILED 1AN.2. 1919.

1,331,461. Patented Feb. 17,1920.

SQZIII II/I 1 6 j V INVENTOR. fl W) BY I. LAW

A TTORNEYS.

UNITED STATES PATENT OFFICE.

FRED RAZPP, OF ALBANY, NEW YORK, ASSIGNOR OF ONE-HALF T0 FREDERICK W. CONSTABLE, OF HAVERSTRAW, NEW YORK.

T0 all-whom it may concern:

Be it known that 1, Farm Rare, a citizen of the United States, residing at the city of Albany, in. the county of Albany and State of New York, have invented certain new and useful Improvements in Foundation Extensions, of which the following is a. specification.

My invention relates to foundation extensions for increasing or depressing the height of foundations of any style or construction and more particularly for the foundations for signal mechanisnr on railroads, and the object of my invention is. to produce simple and economical means for increasing or depressing the height of foundations, especially for signal mechanism used in connection with railways, as shown in the accompanying drawings, in which Figure 1 is a perspective view of one member of said extension.

Fig. 2 is a perspective view of another member of said extension.

Fig. 3 is a perspective view of a modified form of the member shown in Fig. 2.

Fig. & is an end elevation, partly in section, of my extension applied to a standard foundation, and illustrates the manner of building up the extension with the various members.

Similar letters refer to similar parts throughout the several views.

It is well known that in railway operations the signal apparatus is located u on foundations at various points and tnat changes in the road bed frequently make it necessary to elevate or depress the foundations for the signal apparatus at that point. When the road bed is elevated or depressed the foundation for the signal apparatus has to be changed accordingly. The particular object of my invention is to produce a simple means by which the height of the foun dation may be altered at will when desired.

Referring to the drawings, A, as shown in Fig. 1, is the main member of my extension. This member is provided with a suitable base adapted to rest upon the original foundation and having slotted holes therein, said slotted holes adapted to engage with bolts for anchoring the member to the original foundation. LIhis base portion is provided along its sides with downwardly extending flanges a, a, adapted to engage with the Specification of Letters Patent.

FOUNDATION EXTENSION.

Patented Feb. 17, 1920.

-' Application filed January 2, 1919. Serial No. 269,178.

original foundation if placed directly thereon, or with the sides of the top portion of a similar foundation extension if placed upon the top thereof.

The top member C of the extension A has formed longitudinally in the top thereof a T slot adapted to receive the head of a bolt h for fastening to the extension A the mechanism F, which it is desired to elevate.

In the bottom of the T slot I form slotted holes, in alinement with the slotted hole in the base portion. This makes it possible tofasten the mechanism F and the interposed member or members of the foundation extension securely to the original foundation by the use of one long bolt in place of two, as shown in Fig. 4.

Transverse webs, so dispose-d as not to interfere with clear passage between the slotted holes in the base and top members, separate and join together the top and base portions of the main extension member.

In order to provide for varying heights which may be required I provide square blocks D, E (having different thicknesses) and having a bolt hole through the center thereof and on its under surface a rib adapted to fit in the T slot in the main extension member so as to prevent the block from turning.

Provided with my main extension members and blocks of varying thicknesses, it is a simple matter to change the height of the mechanism above the original foundation.

hat I claim as my invention and desire to secure by Letters Patent is 1. In a foundation extension of the class described, a base provided with slotted holes adapted to engage with bolts for anchoring the extension to the original foundation, downwardly extending flanges longitudinal of said base, adapted to engage with the top of said original foundation, a top having formed longitudinally in the face thereof a T slot adapted to receive the head of a bolt, the width of said top being such that it will fit between the downwardly extending flanges on the bottom of a similar extension when said similar extension is snperimposed thereon; slotted holes in the bottom of said T slot and in line with the slotted holes in said base and webs con necting said top to said base, said webs so disposed as to leave transverse openings through the extension in which nuts adapted to engage the anchoring bolts may be manipulated. y

2. In a foundation extension of the class described, a base provided with slotted holes adapted to engage with bolts for anchoring the extension; downwardly flanges longitudinal of said base adapted to engage with the sides of the top of a similar extension when superimposed thereon; a top having formed longitudinally in the face thereof a T slot adapted to receive the head of a bolt; slotted holes inthe bottom of said T slot extending through said top and in'line with the slotted holes in said base and webs connecting said top to said base, said webs so disposed as to leave transverse openings through the extension in which nuts on the anchoring bolts may be manipulated.

3. In a foundation extension of the class described, a base provided with slotted holes adapted to engage with bolts for anchoring the extension; downwardly extending flanges longitudinal of said base adapted extending to engage with the sides of the top of a similar extension when superimposed thereon; a top having formed longitudinally in the face thereof a T slot adapted to receive the head of a bolt; slotted holes in the bottom of said T slot, extending through said top and in line with the slotted holes in said base; webs connecting said top to said base, said webs so disposed as to leave transverse openings through the extension in which nuts on the anchoring bolts may be manipulated, and a squareblock of desired thickness having a bolt hole in the middle thereof and a rib 011 the under side, said rib adapted to fit in the T slot formed inthe said top whereby said block will be prevented from turning, all substantially as describe'd and for the purposes set forth;

In testimony whereof I' aflix my signature in the presence of twowitnesses.

FRED RAPP. 

